CN111059619A - Drainage device of air conditioner indoor unit - Google Patents

Abstract

The drainage device of the air conditioner indoor unit comprises a water receiving tank, a drainage pipe and a filter screen, wherein the filter screen is horizontally arranged in the water receiving tank and is higher than a water outlet of the water receiving tank. The water receiving tank water outlet be equipped with the filter core of elasticity material, its anterior segment bore is less, matches with the bore of water receiving tank water outlet and drain pipe, passes the water receiving tank water outlet and gets into the drain pipe. Or the tail end of the drain pipe is provided with a detachable S-shaped pipe or two U-shaped pipes connected end to end. Compared with the prior art, the invention has the following advantages: can avoid the flocculus in the condensate water and get into and block up the drain pipe, convenient maintenance, with low costs, need not change current product structure, do not destroy beneficial technological effect such as product molding, be convenient for implement, simultaneously, still have prevent that cockroach, mosquito from getting into the air conditioner indoor unit, solve sealed not good inside and outside gaseous formation convection current that makes the air conditioner indoor unit, influence beneficial technological effect such as technical problem of heat transfer effect.

Description

Drainage device of air conditioner indoor unit

Technical Field

The invention relates to an air conditioner, in particular to a technology for discharging condensed water of the air conditioner.

Background

The overflow of the condensed water is usually caused by the blockage of the drain pipe, and the drain pipe is wrapped by the heat-insulating material together with other pipes and wires, so that the maintenance cost is high and the user cannot solve the problem by himself due to the overhead operation. The solutions such as the air conditioner drainage pump and the air conditioner drainage mechanism which adopt the water pump disclosed in the Chinese patent numbers 201410697946.8 and 201210433116.5 need to adopt the water pump or the motor and the transmission member, do not count the cost and the cost, do not consider the assembly and the installation space, and have no practical value. The Chinese patent numbers 201821678689.3, 201822144514.0 disclose [ a drain pan of an air conditioner ] and [ a drain structure of condensed water of a house car air conditioner ], and the like, and the problem that the drain pan is inconvenient to disassemble and maintain after being blocked is solved, but not the problem of blocking. Chinese patent No. 201821063847.4 discloses xuelimei, yan jiaming, and so on, filed by heil air conditioner limited, 2018, 7, month, 5, [ a drain pipe structure of an air conditioner internal unit, and an air conditioner ], which consider that overflow of condensed water is caused by corpse accumulation of overnight winged insects stuck to the wall of a drain pipe by the condensed water, and can solve the problem that "water drained by the drain pipe seals the drain pipe opening, and external foreign objects cannot enter the drain pipe", but tests prove that no winged insects exist and the condensed water can overflow; the scheme can only solve the problem of entering of flying insects and cannot solve the problem of overflowing of condensed water. Furthermore, the open water receiving box is used for fixing mosquitoes, dust and sundries to easily fall into the water receiving box, and the condensed water at the opening of the sealed drainage pipe can be evaporated during the period of the stop of the air conditioner. Chinese patent No. 201821458857.8 discloses weixing, li authority, etc., [ a drainage device for an air conditioner indoor unit and an air conditioner including the same ] filed in 2018, 9 and 6, their own documents believe that "the drainage device for an air conditioner indoor unit is usually provided with a section of U-shaped pipe on a pipeline, and the reason for the overflow of condensed water is" foreign matter deposits at the bottom of the U-shaped pipe "to form blockage," in addition, "the air pressure inside the air conditioner indoor unit is unstable due to the flow of air during heat exchange, and the water in the U-shaped pipe may be sucked or blown out reversely, so that the sealing effect of the U-shaped pipe is unstable. Neglected that the U-shaped pipe is not blocked, the drain pipe is also blocked, and the air conditioner without the U-shaped pipe also has the problem of condensate water overflow, the above-mentioned Haier air conditioner is just an example, and neglected that in order to make the area of the cross section of the accommodating cavity 5 larger, the spherical cavity must also be larger, which not only affects the shape of the product, but also affects the installation. The two prior arts from the air conditioner manufacturing industry have different analysis and judgment on the main reason of overflow, are inverse examples, determine that the solution can only solve the problem that the winged insect enters the drain pipe or the U-shaped pipe is blocked, and cannot solve the problem that the drain pipe is blocked to cause the overflow of the condensed water. Chinese patent No. 201810587924.4 discloses a drainage structure and an air conditioner filed by zhahi ge li electric appliances limited company, xiangxiang jianxiaxianjiao et al, 2018, 9, and 6, which think that "more and more dirt is accumulated in a drainage pipe during a long-time operation process, thereby causing the blockage of the drainage pipe. "they give a solution to arrange a filter screen upstream of the drain or in or covering the drain of the sink. They have neglected to set up the filter screen near the drain pipe mouth, and the debris that originally can flow also are detained in filter screen department, block up faster that can come. The main reason for the clogging of the drain is the attachment of flocs in the condensed water to the walls of the pipe. The condensed water is produced at a very slow speed and flow rate, does not have the scouring function, flocculent dust has a small specific gravity, is easy to attach to the pipe wall of the drain pipe, and has the function of adhering mosquitoes and dust, particularly, the condensed water is dried and clings to the inner wall of the drain pipe during the off period of the air conditioner, so that the subsequent flocculent is easy to attach, after the air conditioner is started, new flocculent attachment is produced very quickly, the cycle is repeated, the attachment layer is thickened continuously, and when the throughput of the condensed water is less than the production amount, the more the condensed water in the water receiving tank is accumulated. The problem is properly solved, not only the problem of drain pipe blockage is solved, but also various problems possibly caused by the fact that the drain pipe is blocked as described above need to be considered, such as cost, whole structure and shape, installation space, filter screen blockage and the like, and related technical problems mentioned in the prior art need to be solved, for example, "because air flows during heat exchange lead to unstable air pressure inside an air conditioner indoor unit, water in a U-shaped pipe can be sucked back or blown out, so that the sealing effect of the U-shaped pipe is unstable", "convection is formed between the inside of the air conditioner indoor unit and the outside gas, and the heat exchange effect is influenced. "and the like.

Disclosure of Invention

The invention aims to provide a new technical concept and a technical scheme for properly solving the problem of overflow of condensed water of an air conditioner, and the concept of the invention is as follows: the filter screen is arranged at an inlet which is large enough to ensure that the condensed water which enters the water receiving tank through the floccule covered on the filter screen is not less than the condensed water generated on the heat dissipation coil pipe; the technical scheme of the invention is as follows: the drainage device of the air conditioner indoor unit comprises a water receiving tank, a drainage pipe and a filter screen, wherein the filter screen is horizontally arranged in the water receiving tank and is higher than a water outlet of the water receiving tank.

The water receiving tank water outlet is provided with a filter element, the front section of the filter element is thin, the caliber of the filter element is matched with the calibers of the water receiving tank water outlet and the drain pipe, and the filter element penetrates through the water receiving tank water outlet to enter the drain pipe, or the tail end of the drain pipe is provided with a detachable S-shaped pipe or two U-shaped pipes connected end to end.

Compared with the prior art, the invention has the following advantages: can avoid the flocculus in the condensate water and get into and block up the drain pipe, convenient maintenance, with low costs, need not change current product structure, do not destroy beneficial technological effect such as product molding, be convenient for implement, simultaneously, still have prevent that cockroach, mosquito from getting into the air conditioner indoor unit, solve sealed not good inside and outside gaseous formation convection current that makes the air conditioner indoor unit, influence beneficial technological effect such as technical problem of heat transfer effect.

Drawings

FIG. 1 is a schematic structural view of example 1 of the present invention;

FIG. 2 is a schematic structural view of FIG. 1 with the filter screen removed;

FIG. 3 is a schematic view of the cartridge of FIG. 2;

fig. 4 is a schematic structural diagram of embodiment 2.

Wherein: 1 is the water receiving tank, and 1.1 is the water receiving tank delivery port, and 1.2 is the water receiving tank crossbeam, and 2 is the drain pipe, 2.1 drain pipe end S-shaped pipe, 3 are the filter screen, and 4 are the filter core, 4.1 filter core anterior segment, and 4.2 are the filter core rear end.

Detailed Description

The invention is further described below with reference to the figures and examples.

Example 1

Referring to fig. 1-3, the present embodiment includes a drainage device for an air conditioner indoor unit, including a water receiving tank 1, a drainage pipe 2, a filter screen 3 and a filter element 4, where the filter screen 3 is horizontally disposed in the water receiving tank 1 and is higher than a water outlet 1.1 of the water receiving tank. Filter core 4 adopt the high density sponge of trompil structure, the bore of anterior segment 4.1 is thin longer, with water receiving tank delivery port 1.1 and drain pipe 2 internal diameter phase-match, can fill in wherein, during the installation, passes water receiving tank delivery port 1.1 and gets into drain pipe 2, the front end arrives in the turning, and its back segment 4.2 bore is slightly thick, prevents that filter core 4 from receiving unstable atmospheric pressure effect by the suction or pushing. Filter screen 3 adopt the used metal 2 net that can not the corrosion of air conditioner indoor unit air filter screen, also can adopt aluminium sheet metal stamping forming, be equipped with 3 crossbeams 1.2 in the water receiving tank 1 for install filter screen 3. When the air conditioner works, flocculent dust in condensed water is intercepted by the filter screen 3, and the condensed water enters the water receiving tank 1 and enters the drain pipe 2 through the water outlet 1.1 of the water receiving tank to be discharged. The area of the filter screen 3 is approximately more than 400 square centimeters, generally, about 0.83 g/s of condensed water generated on 1.5-piece air conditioner evaporator is about, namely, the average amount of the condensed water born by each square centimeter is about 0.002 g/s, so even if the filter screen is completely covered by flocculent dust, the condensed water generated on the evaporator can also completely permeate and enter the water receiving tank 1, experiments prove that the speed of the filter screen 3 covered by the flocculent dust is far lower than the speed of the air filter screen of the air conditioner indoor unit covered by the flocculent dust, under general environmental conditions, the latter generally needs to be brushed once every year, and the former needs to be brushed once at most 3 years. The filter element 4 plays a role in secondary filtration, and is mainly used for preventing cockroaches and mosquitoes from entering the air conditioner indoor unit, preventing the air inside and outside the air conditioner indoor unit from forming convection and influencing the heat exchange effect, which is a function which cannot be realized by a filter screen and a function which cannot be realized by a common filter element in other industries; the flocculent dust cannot enter the drain pipe 2, so that the drain pipe cannot be blocked by the flocculent dust, and winged insects are not easy to adhere to the inner wall of the drain pipe 2 to cause blockage; the easy implementability of technical scheme need not change the molding, structure, mould and the packing of product in the embodiment fully considering, only needs to increase a filter screen 3 and a filter core 4 on original product basis, and the water receiving tank of some producer's products probably does not establish crossbeam 1.2, can modify the mould, increases crossbeam 1.2, also can not modify the mould, and do two three and arrange the pad below filter screen 3. Therefore, this embodiment compares with prior art and has the flocculus of avoiding in the comdenstion water and gets into and block up the drain pipe, convenient maintenance, with low costs, need not change current product structure, do not destroy product molding, be convenient for implement etc. beneficial technological effect, simultaneously, still have prevent that cockroach, mosquito from getting into air conditioner indoor unit, solve sealed inside and outside gaseous formation convection that does not make air conditioner indoor unit well, influence the technical problem of heat transfer effect to properly solve the beneficial technological effect of the technical problem that the comdenstion water spills over.

Example 2

Referring to fig. 4, compared with embodiment 1, the difference of this embodiment is mainly that the filter element 4 is omitted, and an S-shaped pipe which can be conveniently detached/installed is connected to the end of the drain pipe 2, or two U-shaped pipes which are connected end to end can be used instead. Play and carry out the water seal to drain pipe 2 delivery port, avoid the mosquito to get into drain pipe 2, solved prior art simultaneously and adopted mosquito, dust and debris that the water receiving box exists to easily fall into wherein, the orificial comdenstion water of sealed drainage, during air conditioner is stopped using, the technical problem that can evaporate. The other parts not described are the same as those of the first embodiment.

It should be noted that all the equivalent transformation, or different expressions with the same essential meaning, which are directly or indirectly applied to other related technical fields, made by using the contents of the present specification and the attached drawings, are within the protection scope of the present invention.

Claims (3)

1. The utility model provides a drainage device of air conditioner internal unit, includes water receiving tank, drain pipe, its characterized in that: the water receiving tank is characterized by further comprising a filter screen, wherein the filter screen is horizontally arranged in the water receiving tank and is higher than the water outlet of the water receiving tank.

2. The drainage device of an air conditioner indoor unit according to claim 1, characterized in that: the water receiving tank water outlet be equipped with the filter core of elasticity material, its anterior segment bore is less, matches with the bore of water receiving tank water outlet and drain pipe, passes the water receiving tank water outlet and gets into the drain pipe.

3. The drainage device of an air conditioner indoor unit according to claim 1, characterized in that: the tail end of the drain pipe is provided with a detachable S-shaped pipe or two U-shaped pipes connected end to end.

Images